package com.wjl.picture.common.config;

import cn.hutool.http.ContentType;
import cn.hutool.http.Header;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

/**
 * 请求包装过滤器  
 *  
 * @author pine  
 */  
@Order(1)
@Component
public class HttpRequestWrapperFilter implements Filter {
  
    @Override  
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
        if (request instanceof HttpServletRequest) {
            HttpServletRequest servletRequest = (HttpServletRequest) request;  
            String contentType = servletRequest.getHeader(Header.CONTENT_TYPE.getValue());
            if (ContentType.JSON.getValue().equals(contentType)) {
                // 可以再细粒度一些，只有需要进行空间权限校验的接口才需要包一层  
                chain.doFilter(new RequestWrapper(servletRequest), response);  
            } else {  
                chain.doFilter(request, response);  
            }  
        }  
    }  
  
}
